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Ron Jeffries

American computer scientist
Person Human Q92789

Facts

11 properties
Instance of
human
Sex or gender
male[9]
Date of birth
December 26, 1939
Place of birth
Washington, D.C.
Country of citizenship
United States[6]
Occupation
computer scientist, engineer, programmer
Field of work
informatics, computer science[7][8]
Official website
www.xprogramming.com[12]
Languages spoken, written or signed
English[13]
Family name
Jeffries[10]
Given name
Ron[11]
🏷️ Also known as
en Ron Jeffries ar رون جيفريز ja ロン・ジェフリーズ uk Рон Джефрі zh 罗恩·杰弗里斯 zh-hant 羅恩·傑弗里斯
🔖 Identifiers · 18
ISNI
0000000114732155
VIAF cluster ID
58449792
Library of Congress Authorities ID
n2003015303
GND ID
1290211507
Image (Wikimedia Commons)
Ron Jeffries.jpg ↗
BIBSYS ID
90176804
BNB person ID (OBSOLETE)
JeffriesRon1939-
DDB person (GND) ID
1290211507
Europeana entity
agent/base/91993
Freebase ID
/m/026mxq5
IdRef ID
110417046
Mastodon address
RonJeffries@mastodon.social
Show all 18 identifiers +6
NL CR AUT ID
mzk2015886736
NUKAT ID
n2005079631
National Library of Korea ID
KAC201706771
Prabook ID
1929249
WorldCat Entities ID
E39PBJfrKk77GBY6tfQGkWQH4q
Yale LUX ID
person/0e6f76b0-26b1-4cab-a156-af8b989c6ca1

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Occupation 4
engineer, programmer, computer scientist, software engineer
Field of work 3
artificial intelligence, computer science, informatics
Country of citizenship 1
United States
Given name 1
Ron
Instance of 1
human
Languages spoken, written or signed 1
English
Place of birth 1
Washington, D.C.
Sex or gender 1
male
Works by author 1
Agile Manifesto
← FactGrid item ID 1
Unterroth
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Summary

Ron Jeffries was born on December 26, 1939[1], in Washington, D.C.[2]. He has worked as a computer scientist[3], engineer[4], and programmer[5].

Why It Matters

Works attributed to Ron Jeffries include Agile Manifesto[14], a manifesto[15], written by Kent Beck[16].

FAQs

Where was Ron Jeffries born?

Ron Jeffries's place of birth was Washington, D.C.[2].

What did Ron Jeffries do for work?

Ron Jeffries worked as a computer scientist[3], engineer[4], and programmer[5].

Related Entities

artificial intelligence computer science computer scientist informatics programmer software engineer United States

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  2. [9] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [7] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  5. [8] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  6. [3] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  7. [4] ↑ . wikidata.org.
  8. [5] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  9. [1] ↑ . wikidata.org.
  10. [10] ↑ . wikidata.org.
  11. [11] ↑ . wikidata.org.
  12. [12] ↑ . wikidata.org.
  13. [13] ↑ . Czech National Authority Database. Retrieved . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [14] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [15] ↑ . Wikidata. wikidata.org. → on this site
  2. [16] ↑ . Wikidata. wikidata.org. → on this site

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Ron Jeffries. Retrieved November 13, 2026, from https://4ort.xyz/entity/ron-jeffries
MLA “Ron Jeffries.” 4ort.xyz Knowledge Graph, 4ort.xyz, 13 Nov. 2026, https://4ort.xyz/entity/ron-jeffries.
BibTeX @misc{4ortxyz_ron-jeffries_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Ron Jeffries}}, year = {2026}, url = {https://4ort.xyz/entity/ron-jeffries}, note = {Accessed: 2026-11-13}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Ron Jeffries — https://4ort.xyz/entity/ron-jeffries (retrieved 2026-11-13)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 1d ago · Dev Jadiya · 2026-11-13 view diff on Wikidata ↗
    "Changed [hi] labels, descriptions or aliases: QuickStatements 3.0 batch #67776"
  2. 5d ago · Printstream · 2026-11-09 view diff on Wikidata ↗
    "Changed the item: QuickStatements 3.0 batch #65762: add GND as source to unsourced or imported places and occupations"
  3. 5w ago · Printstream · 2026-10-06 view diff on Wikidata ↗
    "Changed [de] labels, descriptions or aliases: QuickStatements 3.0 batch #57984: Import missing aliases from dewiki 1/3"
  4. 28w ago · Spiral6800 · 2026-05-01 view diff on Wikidata ↗
    NUKAT ID → n2005079631
    BNB person ID (OBSOLETE) → JeffriesRon1939-
    Image → Ron Jeffries.jpg
    Prabook ID → 1929249
    + 26 other properties edited (see Wikidata diff for full list)
    "Created claim: Mastodon address: RonJeffries@mastodon.social, Matched to Ron Jeffries (#180073731) in…"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.